/Engine/Source/Editor/UnrealEd/Classes/Editor/EditorEngine.h
Parents one actor to another Check the validity of this call withCanParentActors().
void ParentActors ( [AActor](API\Runtime\Engine\GameFramework\AActor) * ParentActor, [AActor](API\Runtime\Engine\GameFramework\AActor) * ChildActor, const [FName](API\Runtime\Core\UObject\FName) SocketName, [USceneComponent](API\Runtime\Engine\Components\USceneComponent) * Component )